/**
 * Copyright 2000 self.com.au
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License. (http://www.apache.org/licenses/LICENSE-2.0)
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed 
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for 
 * the specific language governing permissions and limitations under the License.
 *
 * <dhamma-message src="Atisha (11th century Tibetan Buddhist master)">
 * 	The greatest achievement is selflessness. The greatest worth is self-mastery.
 * 	The greatest quality is seeking to serve others. The greatest precept is continual awareness.
 * 	The greatest medicine is the emptiness of everything. The greatest action is not conforming with the worlds ways.
 * 	The greatest magic is transmuting the passions. The greatest generosity is non-attachment.
 * 	The greatest goodness is a peaceful mind. The greatest patience is humility.
 * 	The greatest effort is not concerned with results. The greatest meditation is a mind that lets go.
 * 	The greatest wisdom is seeing through appearances. 
 * </dhamma-message>
 *
 * @author Ashin Wimalajeewa
 */
package self.amigo.elem.uml;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Point;
import java.awt.Polygon;
import java.awt.event.MouseEvent;

import self.amigo.elem.ARectangularHandledElement;
import self.amigo.elem.ARectangularLinkable;
import self.gee.IGraphicElement;

public class ActivityDecisionView extends ARectangularLinkable {
	
	/**
	 * If the internal state of this class ever changes in such a way that it can't be defaulted,
	 * then the {@link #serialVersionUID} should be incremented to ensure serialized instances cleanly fail.  
	 */
	private static final long serialVersionUID = 1;
	
  public ActivityDecisionView() {
    delegate =  constructDelegate();
    setDelegate( delegate );
  }
  
  protected ARectangularHandledElement constructDelegate() {
    return new Essential();
  }
  
  class Essential extends ARectangularHandledElement {
  	
	/**
	 * If the internal state of this class ever changes in such a way that it can't be defaulted,
	 * then the {@link #serialVersionUID} should be incremented to ensure serialized instances cleanly fail.  
	 */
	private static final long serialVersionUID = 1;
	
    private int[]   xVals = new int[4];
    private int[]   yVals = new int[4];
    
    private Polygon figFrame = new Polygon();
    
    public Essential() {
      fig.setBounds( 10, 10, 25, 13 );
      figFrame.npoints = 4;
      figFrame.xpoints = xVals;
      figFrame.ypoints = yVals;
    }

    public void       paint( Graphics surface ) {
      if ( !outlineOnly ) {
        surface.setColor( Color.white );
        surface.fillPolygon( figFrame );
      }
      surface.setColor( frameColor );
      surface.drawPolygon( figFrame );
    }
    
    public void       resize( int x, int y, Point[] handle, MouseEvent e, int dragState ) {
      if ( dragState == IGraphicElement.DS_AFTER_LAST ) {
        super.resize( x, y, handle, e, dragState );
        return;
      } 
      layer.beginUpdate();
      super.resize( x, y, handle, e, dragState );
      fig.width = 25;
      fig.height = 13;
      resetFrame();
      layer.endUpdate();
    }  

    protected void resetFrame() {
      int xMid = fig.x + (fig.width/2);
      int yMid = fig.y + (fig.height/2);
      xVals[0] = fig.x;
      yVals[0] = yMid;
      xVals[1] = xMid;
      yVals[1] = fig.y;
      xVals[2] = fig.x + fig.width;
      yVals[2] = yMid;
      xVals[3] = xMid;
      yVals[3] = fig.y + fig.height;
    }
  }
}
